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 // Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file // for details. All rights reserved. Use of this source code is governed by a // BSD-style license that can be found in the LICENSE file. import "package:expect/expect.dart"; class OperatorTest { static int i1, i2; OperatorTest() {} static testMain() { var op1 = new Operator(1); var op2 = new Operator(2); Expect.equals(3, op1 + op2); Expect.equals(-1, op1 - op2); Expect.equals(0.5, op1 / op2); Expect.equals(0, op1 ~/ op2); Expect.equals(2, op1 * op2); Expect.equals(1, op1 % op2); Expect.equals(true, !(op1 == op2)); Expect.equals(true, op1 < op2); Expect.equals(true, !(op1 > op2)); Expect.equals(true, op1 <= op2); Expect.equals(true, !(op1 >= op2)); Expect.equals(3, (op1 | op2)); Expect.equals(3, (op1 ^ op2)); Expect.equals(0, (op1 & op2)); Expect.equals(4, (op1 << op2)); Expect.equals(0, (op1 >> op2)); Expect.equals(-1, -op1); op1.value += op2.value; Expect.equals(3, op1.value); op2.value += (op2.value += op2.value); Expect.equals(6, op2.value); op2.value -= (op2.value -= op2.value); Expect.equals(6, op2.value); op1.value = op2.value = 42; Expect.equals(42, op1.value); Expect.equals(42, op2.value); i1 = i2 = 42; Expect.equals(42, i1); Expect.equals(42, i2); i1 += 7; Expect.equals(49, i1); i1 += (i2 = 17); Expect.equals(66, i1); Expect.equals(17, i2); i1 += i2 += 3; Expect.equals(86, i1); Expect.equals(20, i2); } } class Operator { int value; Operator(int i) { value = i; } operator +(Operator other) { return value + other.value; } operator -(Operator other) { return value - other.value; } operator /(Operator other) { return value / other.value; } operator *(Operator other) { return value * other.value; } operator %(Operator other) { return value % other.value; } operator ==(Operator other) { return value == other.value; } operator <(Operator other) { return value < other.value; } operator >(Operator other) { return value > other.value; } operator <=(Operator other) { return value <= other.value; } operator >=(Operator other) { return value >= other.value; } operator |(Operator other) { return value | other.value; } operator ^(Operator other) { return value ^ other.value; } operator &(Operator other) { return value & other.value; } operator <<(Operator other) { return value << other.value; } operator >>(Operator other) { return value >> other.value; } operator ~/(Operator other) { return value ~/ other.value; } operator -() { return -value; } } main() { OperatorTest.testMain(); }